JEEP WRANGLER STARTER SYSTEM
INSTALLATION INSTRUCTIONS
DOC NO. JL-STARTER-INST PAGE 5 OF 8
10. Remove the two bolts holding the driver side rear sway bar bracket to frame (15mm socket). Discard
hardware.
11. Loosen, but do not remove, hardware holding the passenger side rear sway bar bracket to frame
(15mm socket). The sway bar should be loose and able to move.
12. Install an 8886-02 spacer block in between the driver side frame and sway bar bracket. Loosely
install the provided hardware with a washer under the bolt head.
13. Remove the passenger side bracket from frame and discard hardware.
14. Install an 8886-02 spacer block in between passenger side frame and sway bar bracket. Loosely
install the provided hardware with a washer under the bolt head.
15. Make sure the brackets and sway bar are centered. Torque mounting hardware to 35 lb-ft (17mm
socket).
INSTALLING 8057-10 REAR BUMP STOP SPACERS
16. Install a single lower bump stop spacer through the forward hole on the stock bump stop pads.
Torque hardware to 35 lb-ft.
17. Install a cap on each of the bump stop spacers for a total of 2” of bump stop spacing (minimum
required, see Table 1 at end of instructions for recommended bump stop spacing). The cap can be
‘snapped’ on to the lower spacer with a mallet or a large prybar.
INSTALLING 8864 REAR SPRINGS
18. Remove the brake line bracket from the axle with a 10mm wrench.
19. Loosen, but do not remove, the frame side and axle side track bar bolts (21mm socket).
20. Loosen, but do not remove, all control arm hardware (axle side and frame side).
21. If the vehicle is a Rubicon model, remove the rear locker wiring harness from the differential.
Remove the parking brake cables from the caliper and tabs on the axle.
22. If working with the vehicle on the ground, it is easiest at this point to support the center of the axle
with a floor jack and remove the jackstands from under the axle. If using a lift, lower the axle.
23. Lower the axle far enough to remove the rear springs and upper isolators. Be very careful not to
damage any brake lines or electrical lines.
24. Install the upper isolators on the Synergy springs.
25. The new Synergy springs are stamped with a part number. The last two digits of the part number
indicate which side of the vehicle they go on. The -01 is the driver side (left) spring. The -02 is the
passenger side (right) spring.
26. Install the Synergy rear springs, making sure the upper isolators are properly seated. There is a ‘nub’
on the top of the upper spring isolator that must fit into a hole in the spring perch on the frame.
27. With the springs in place raise the axle back up to prevent them from falling out. Replace jack stands
under axle.
INSTALLING 8860-01 REAR SWAY BAR LINKS
28. After allowing the paint to dry, bolt the shock relocation brackets back onto the control arm mounts
with the provided hardware. Bolts should be installed from the back forward with a washer under the
bolt head and the serrated flange nut on the inside of the control arm brackets. Leave bolts slightly
loose.
29. Install the Synergy sway bar links. The tie rod end goes into the sway bar, with the nut on the inside
of the bar, towards the frame. The bushing end of the link attaches to the axle, just as the stock end
link, on the outside of the axle tab (towards the wheel/tire).
30. It may be necessary to use a 14mm open end wrench on the flats on the stud to prevent the stud from
turning while tightening the nut (15mm wrench)
31. Torque the sway bar link hardware. Torque lower bolts to 60 lb-ft and upper nut to 50 lb-ft.
32. Tighten the jam nut with a 19mm wrench, using an 18mm wrench to hold the tie rod end.
33. Torque the shock mount bracket 5/16” bolts to 20 lb-ft.